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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamicsMedium2 minQB

PhysicsMediumsingle choice

An ideal monatomic gas expands quasi-statically to twice its volume. If the process is isothermal, the work done by the gas is $W_{i}$ . If the process is adiabatic, the work done by the gas is $W_{a}$ . Which of the following is true?

Options:

Answer:

Solution:

Expansion work is positive in both cases, so $W_{i}, W_{a} > 0$ . The adiabat falls below the isotherm as the gas expands, so the area under it is smaller. Hence $0 < W_{a} < W_{i}$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics

⏱ 2mℹ️ Source: QB

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